sulfasalazine and its Impurities

A sulfa drugs class of medication, Sulfasalazine is known in the trade name of Azulfidine. It is used in the treatment of rheumatoid arthritis and ulcerative colitis. Sulfasalazine metabolizes to sulfapyridine.Reference standards of Sulfasalazine API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

Displaying 41 results for sulfasalazine Impurities
PA 19 31000

Sulfasalazine

Sulfasalazine

  • Catalogue No.:PA 19 31000

  • CAS :

    599-79-1

  • Molecular Formula : C18H14N4O5S

  • Molecular Weight : 398.39

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PA 19 31010

Sulfasalazine - Impurity A

2,4-Bis[[p-(2-pyridylsulfamoyl)phenyl]azo]hydroxybenzene

  • Catalogue No.:PA 19 31010

  • CAS :

    1391062-35-3

  • Molecular Formula : C28H22N8O5S2

  • Molecular Weight : 614.65

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PA 19 31020

Sulfasalazine - Impurity B

2-Hydroxy-3,5-bis[2-[4-(pyridin-2-ylsulfamoyl)phenyl]diazenyl]benzoic Acid

  • Catalogue No.:PA 19 31020

  • CAS :

    1391062-49-9

  • Molecular Formula : C29H22N8O7S2

  • Molecular Weight : 658.66

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PA 19 31030

Sulfasalazine - Impurity C

2-Hydroxy-5-[2-[4-(2-imino-1(2H)-pyridinyl)phenyl]diazenyl]benzoic Acid

  • Catalogue No.:PA 19 31030

  • CAS :

    66030-25-9

  • Molecular Formula : C18H14N4O3

  • Molecular Weight : 334.33

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PA 19 31040

Sulfasalazine - Impurity D

4-[2-(2-hydroxyphenyl)diazenyl]-N-(pyridin-2-yl)benzenesulfonamide

  • Catalogue No.:PA 19 31040

  • CAS :

    66364-70-3

  • Molecular Formula : C17H14N4O3S

  • Molecular Weight : 354.38

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PA 19 31050

Sulfasalazine - Impurity E

2-hydroxy-4'-(pyridin-2-ylsulfamoyl)-5-[2-[4-(pyridin-2-ylsulfamoyl)phenyl]diazenyl] biphenyl-3-carboxylic acid

  • Catalogue No.:PA 19 31050

  • CAS :

    1391062-34-2

  • Molecular Formula : C29H22N6O7S2

  • Molecular Weight : 630.65

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PA 19 31060

Sulfasalazine - Impurity F

Sulfasalazine 3-Isomer

  • Catalogue No.:PA 19 31060

  • CAS :

    66364-71-4

  • Molecular Formula : C18H14N4O5S

  • Molecular Weight : 398.39

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PA 19 31070

Sulfasalazine - Impurity G

5-[2-[4 ,5-bis(pyridin-2-ylsulfamoyl)biphenyl-2-yl]diazenyl]-2-hydroxybenzoic acid

  • Catalogue No.:PA 19 31070

  • CAS :

    1391062-37-5

  • Molecular Formula : C29H22N6O7S2

  • Molecular Weight : 630.65

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PA 19 31080

Sulfasalazine - Impurity H

Salicylic Acid

  • Catalogue No.:PA 19 31080

  • CAS :

    69-72-7

  • Molecular Formula : C7H6O3

  • Molecular Weight : 138.12

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PA 19 31090

Sulfasalazine - Impurity I

2-Hydroxy-5-[2-(4-sulfophenyl)diazenyl]benzoic acid

  • Catalogue No.:PA 19 31090

  • CAS :

    21542-82-5

  • Molecular Formula : C13H10N2O6S

  • Molecular Weight : 322.29

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PA 19 31100

Sulfasalazine - Impurity J

Sulfapyridine

  • Catalogue No.:PA 19 31100

  • CAS :

    144-83-2

  • Molecular Formula : C11H11N3O2S

  • Molecular Weight : 249.29

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PA 19 31510

Sulfasalazine Derivative

Sulfasalazine Derivative

  • Catalogue No.:PA 19 31510

  • CAS :

    42753-55-9

  • Molecular Formula : C19H16N4O5S

  • Molecular Weight : 412.42

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PA STI 058870

5-Aminosalicylic Acid-13C6 Hydrochloride

5-Aminosalicylic Acid-13C6 Hydrochloride

  • Catalogue No.:PA STI 058870

  • CAS :

    1261398-47-3

  • Molecular Formula : C13C6H8ClNO3

  • Molecular Weight : 195.55

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PA STI 080460

Sulfasalazine-d4

Sulfasalazine-d4

  • Catalogue No.:PA STI 080460

  • CAS :

    1346606-50-5

  • Molecular Formula : C18H10D4N4O5S

  • Molecular Weight : 402.42

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PAI 19 004010

(E)-4-((5-Amino-2-hydroxyphenyl)diazenyl)-N-(pyridin-2-yl)benzenesulfonamide

(E)-4-((5-Amino-2-hydroxyphenyl)diazenyl)-N-(pyridin-2-yl)benzenesulfonamide

  • Catalogue No.:PAI 19 004010

  • CAS :

    NA

  • Molecular Formula : C17H15N5O3S

  • Molecular Weight : 369.40

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PAI 19 004020

(E)-4-((5-Bromo-2-hydroxyphenyl)diazenyl)-N-(pyridin-2-yl)benzenesulfonamide

(E)-4-((5-Bromo-2-hydroxyphenyl)diazenyl)-N-(pyridin-2-yl)benzenesulfonamide

  • Catalogue No.:PAI 19 004020

  • CAS :

    NA

  • Molecular Formula : C17H13BrN4O3S

  • Molecular Weight : 433.28

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PAI 19 004030

1-(4-Aminophenyl)pyridin-2(1H)-one

1-(4-Aminophenyl)pyridin-2(1H)-one

  • Catalogue No.:PAI 19 004030

  • CAS :

    13143-47-0

  • Molecular Formula : C11H10N2O

  • Molecular Weight : 186.20

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PAI 19 004040

N-(4-(N-(6-Methylpyridin-2-yl)sulfamoyl)phenyl)acetamide

N-(4-(N-(6-Methylpyridin-2-yl)sulfamoyl)phenyl)acetamide

  • Catalogue No.:PAI 19 004040

  • CAS :

    328262-11-9

  • Molecular Formula : C14H15N3O3S

  • Molecular Weight : 305.35

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PAI 19 004050

4-Amino-N-(6-methylpyridin-2-yl)benzenesulfonamide

4-Amino-N-(6-methylpyridin-2-yl)benzenesulfonamide

  • Catalogue No.:PAI 19 004050

  • CAS :

    73497-98-0

  • Molecular Formula : C12H13N3O2S

  • Molecular Weight : 263.32

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PA 19 31520

2-Hydroxy-5-((4-(N-(4-(N-(pyridin-2-yl)sulfamoyl)phenyl)sulfamoyl)phenyl)diazenyl)benzoic Acid

2-Hydroxy-5-((4-(N-(4-(N-(pyridin-2-yl)sulfamoyl)phenyl)sulfamoyl)phenyl)diazenyl)benzoic Acid

  • Catalogue No.:PA 19 31520

  • CAS :

    2033064-44-5

  • Molecular Formula : C24H19N5O7S2

  • Molecular Weight : 553.56

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PA 19 31530

2-Hydroxy-5-((4-sulfamoylphenyl)diazenyl)benzoic Acid

2-Hydroxy-5-((4-sulfamoylphenyl)diazenyl)benzoic Acid

  • Catalogue No.:PA 19 31530

  • CAS :

    139-56-0

  • Molecular Formula : C13H11N3O5S

  • Molecular Weight : 321.31

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PA 19 31540

2-Hydroxy-5-((4-(N-(5-(4-(N-(pyridin-2-yl)sulfamoyl)phenyl)pyridin-2-yl)sulfamoyl)phenyl)diazenyl)benzoic Acid

2-Hydroxy-5-((4-(N-(5-(4-(N-(pyridin-2-yl)sulfamoyl)phenyl)pyridin-2-yl)sulfamoyl)phenyl)diazenyl)benzoic Acid

  • Catalogue No.:PA 19 31540

  • CAS :

    NA

  • Molecular Formula : C29H22N6O7S2

  • Molecular Weight : 630.65

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PA ICRS0424

Sulfasalazine (ICRS0424)

  • Catalogue No.:PA ICRS0424

  • CAS :

    NA

  • Molecular Formula :

  • Molecular Weight : NA

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PA EPS2155000

Sulfasalazine (S2155000)

Sulfasalazine (S2155000)

  • Catalogue No.:PA EPS2155000

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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PA EPS2155010

Sulfasalazine derivative for resolution (S2155010)

Sulfasalazine derivative for resolution (S2155010)

  • Catalogue No.:PA EPS2155010

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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PA USP1636005

Sulfasalazine (1636005)

  • Catalogue No.:PA USP1636005

  • CAS :

    599-79-1

  • Molecular Formula :

  • Molecular Weight : NA

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PA BP779RB

sulfasalazine (779RB)

sulfasalazine (779RB)

  • Catalogue No.:PA BP779RB

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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PA 19 31550

4-(Acetylamino)-3-bromobenzenesulfonyl Chloride

4-(Acetylamino)-3-bromobenzenesulfonyl Chloride

  • Catalogue No.:PA 19 31550

  • CAS :

    88963-75-1

  • Molecular Formula : C8H7BrClNO3S

  • Molecular Weight : 312.57

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PA 19 31560

N-Acetylsulfamerazine

N-Acetylsulfamerazine

  • Catalogue No.:PA 19 31560

  • CAS :

    127-73-1

  • Molecular Formula : C13H14N4O3S

  • Molecular Weight : 306.34

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PA 19 31570

N-Acetyl Sulfapyridine

N-Acetyl Sulfapyridine

  • Catalogue No.:PA 19 31570

  • CAS :

    19077-98-6

  • Molecular Formula : C13H13N3O3S

  • Molecular Weight : 291.33

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PA 19 0311000

Disodium 2-hydroxy-5-[2-(4-sulfophenyl)diazenyl]benzoic acid

Disodium 2-hydroxy-5-[2-(4-sulfophenyl)diazenyl]benzoic acid

  • Catalogue No.:PA 19 0311000

  • CAS :

    6054-99-5

  • Molecular Formula : C13H8N2Na2O6S

  • Molecular Weight : 366.25

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PA 19 0311001

4,4'-Azanediylbis(N-(pyridin-2-yl)benzenesulfonamide)

4,4'-Azanediylbis(N-(pyridin-2-yl)benzenesulfonamide)

  • Catalogue No.:PA 19 0311001

  • CAS :

    2033064-46-7

  • Molecular Formula : C22H19N5O4S2

  • Molecular Weight : 481.55

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PAI 19 004051

4-Chloro-N-(pyridin-2-yl)benzenesulfonamide

4-Chloro-N-(pyridin-2-yl)benzenesulfonamide

  • Catalogue No.:PAI 19 004051

  • CAS :

    1213-38-3

  • Molecular Formula : C11H9ClN2O2S

  • Molecular Weight : 268.72

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PAI 19 004052

4-Bromo-N-(pyridin-2-yl)benzenesulfonamide

4-Bromo-N-(pyridin-2-yl)benzenesulfonamide

  • Catalogue No.:PAI 19 004052

  • CAS :

    3609-89-0

  • Molecular Formula : C11H9BrN2O2S

  • Molecular Weight : 313.17

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PAI 19 004054

N-(Pyridin-2-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzenesulfonamide

N-(Pyridin-2-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzenesulfonamide

  • Catalogue No.:PAI 19 004054

  • CAS :

    2033064-47-8

  • Molecular Formula : C17H21BN2O4S

  • Molecular Weight : 360.24

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PAI 19 004055

2-Hydroxy-4'-(N-(pyridin-2-yl)sulfamoyl)-[1,1'-biphenyl]-3-carboxylic Acid

2-Hydroxy-4'-(N-(pyridin-2-yl)sulfamoyl)-[1,1'-biphenyl]-3-carboxylic Acid

  • Catalogue No.:PAI 19 004055

  • CAS :

    2512199-33-4

  • Molecular Formula : C18H14N2O5S

  • Molecular Weight : 370.38

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PAI 19 004056

3-Bromo-2-hydroxybenzoic Acid

3-Bromo-2-hydroxybenzoic Acid

  • Catalogue No.:PAI 19 004056

  • CAS :

    3883-95-2

  • Molecular Formula : C7H5BrO3

  • Molecular Weight : 217.02

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PA 19 0311002

Descarboxysulfasalazine

Descarboxysulfasalazine

  • Catalogue No.:PA 19 0311002

  • CAS :

    330482-44-5

  • Molecular Formula : C17H14N4O3S

  • Molecular Weight : 354.38

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PAI 19 004057

3-Bromo-2-hydroxy-5-((4-(N-(pyridin-2-yl)sulfamoyl)phenyl)diazenyl)benzoic Acid

3-Bromo-2-hydroxy-5-((4-(N-(pyridin-2-yl)sulfamoyl)phenyl)diazenyl)benzoic Acid

  • Catalogue No.:PAI 19 004057

  • CAS :

    NA

  • Molecular Formula : C18H13BrN4O5S

  • Molecular Weight : 477.29

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PA 19 0311003

(E)-2-Hydroxy-5-((4-sulfophenyl)diazenyl)benzoic acid

(E)-2-Hydroxy-5-((4-sulfophenyl)diazenyl)benzoic acid

  • Catalogue No.:PA 19 0311003

  • CAS :

    1310803-27-0

  • Molecular Formula : C13H10N2O6S

  • Molecular Weight : 322.29

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PA IPRS 78 19

Sulfasalazine (IPRS/78/19)

Sulfasalazine (IPRS/78/19)

  • Catalogue No.:PA IPRS 78 19

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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CPHI INDIA- 28, 30 November